Ottv calculation hk
WebView OTTV Tutorial Question 2024.pdf from BSE 1572 at The Hong Kong Polytechnic University. Architecture & Buildings 2024 Tutorial : OTTV U-Value Calculation Exercises 1. A double glazed window unit WebOTTV of reference building : Tower:_____, Podium:_____ Please provide and attach to this Form a copy of the OTTV calculation submitted to the Building Authority. EMSD BEC 2015 page 4 of 11 EE-PB 2015 (V.0) Technical Data of Performance -based Approach for Building Energy Code (BEC) 2015 Form EE-PB ...
Ottv calculation hk
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WebBuildings Department 屋宇署 WebJan 12, 2016 · The OTTV of the external walls of a building tower or a podium, OTTVw, should be calculated using the following formula - OTTVw = (Aw x U xx TDEQw) + (Afw x SC x ESM x SF) Aow where Aw = Area of opaque wall, m2 U = Thermal transmittance of opaque wall, W/m2C (See para 7.1) = Absorptivity of the opaque wall (Table 4)
WebOct 16, 1997 · The OTTV standard is the maximum allowable heat gain value in cooling-dominant regions, calculated for a building or part of a building in W/m 2 [10]. Typically, … WebFeb 1, 2014 · Overall thermal transfer value (OTTV) regulation, developed in a performance-based approach, is used to govern the design of a building envelope with an aim to …
WebThe OTTV equation for external walls in Hong Kong: Science Calculation and Application of OTTV and U-value. The solar factor is the hourly radiation per square metre for horizontal and vertical surfaces (Wm-2). Energy simulation has calculated solar factors for the Hong Kong climate at various orientations. WebOTTV Equation for Walls•Alternatively, Equation (2) can be expressed interms of window-to-wall ratio , WWR. Where WWR = the ratio of window area to total wallarea =A#/A$ 5. OTTV of external wall (Hong Kong) 6. OTTV of roofs (Hong Kong) 7. Calculation of Component coefficients and Parameters 7. Calculation of Component coefficients and Parameters 7.
WebCalculation and Application of OTTV and U-value Major teaching areas Physics: Chapter VIII Energy and Use of Energy Energy Efficiency in Building and Transportation …
WebGuidelines and the Code of Practice OTTV in Buildingsfor 1995 (CoP). The TC also reviews the OTTV and RTTV standards under the Energy Saving Plan for Hong Kong’s Built … horse head knifeWebOverall thermal transfer value (OTTV) regulation, developed in a performance-based approach, is used to govern the design of a building envelope with an aim to reduce the … ps4 customized wireless controllersWebOct 14, 2024 · If we want to calculate the OTTV of the building we simulate, simply use the envelope summary report table where all the external walls and windows are reported. Combined with the material properties, the OTTV can be calculated with spreadsheet, or R, or python, or Honeybee object for that matter. But definitely it does not involve any other ... ps4 cyberpunk 2077 gameplayWebCalculation and Application of OTTV and U-value Major teaching areas Physics: Chapter VIII Energy and Use of Energy. Energy Efficiency in Building and Transportation; … ps4 dark cloudWeb— Extract from Overall Thermal Transfer Value (OTTV): How to Improve Its Control in Hong Kong by Hui, Sam C. M.,1997 Limitations of the OTTV Standard in Hong Kong The biggest limitation of the OTTV method is that it only deals with the building envelope and does not consider other aspects of building design (such as lighting and air ... horse head lamps 1950sWebAppendix 2 - OTTV Calculation P.3 East (Tower) South (Tower) West (Tower) North (Tower) Total gross wall area (m^2) 1007.1575 Total gross wall area (m^2) 2135.75 Total gross wall area (m^2) 1127.865 Total gross wall area (m^2) 2183.21 Glazing areas in 100mm Curtain walls from window schedule Glazing areas in 100mm Curtain walls from window … horse head lampWebFundamental Principles of OTTV OTTV Equations The general form of OTTV equation for external walls looks like this: where Aw, Af = wall and window area (m2); Ai =Aw +Af Uw, Uf = U-values of wall and window (W/m2.K) TDeq = equivalent temperature difference (oC) DT = delta temperature (oC) SC = shading coefficient of window glass SF = solar factor … ps4 dark on monitor